Paper-bag machine.



A. L. PARRISH. PAPER BAG MACHINE.

APPLICATION FILED JULY 19, 1909.

Patented Nov. 1, 1910.

9 SHEETS-SHEET 1.

A. L. PARRISH.

PAPER BAG MACHINE.

APPLIOATION FILED JULY 19 1909.

Patented Nov. 11,1910.

9 8HEETS-SHEBT 2.

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PAPER BAG MACHINE.

APPLIGATION FILED JULY 19, 1909.

Patented Nov. 1, 1910.

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A. L. PARRISH. PAPER BAG MACHINE. APPLIOATION FILED JULY1'9, 1909.

Patented Nov. 1, 1910.

9 SHEETS-SHEET 4.

A. L. PARRISH. PAPER BAG MACHINE. APPLICATION rum JULY19, 1909.

Patented Nov. 1 1910.

9 SHEET8SHEET 5.

A. LPARRISHP PAPER BAG MACHINE.

Patehted Nov. 1,1910.

9 SHEETS-BHEET 6.

APPLICIATION FILED JULY 19, 1909.

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0 Eg /A A. L. PARRISH PAPER BAG MAGHINE. APPLIOATION FILED JULY 19,1909.

' QWAMYU4E Patented Nov. 1 1910.

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' PatentedNov.l,l910.

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PAPER BAG MACHINE. APPLICATION FILED JULY 19, 1909.

$4 704. Patented Nov. 1,1910.

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namnmr osmosi- -ASA I1. PABRISH, F ELKHART, INDIANA.

PAPER-BAG MACHINE.

. Specification of Letters Patent.

Patented Nov. l, 1 .9110).

Application filed. July 19, woe. Serial No. 508,381.

To all whom it may concemt.

Be, it known that I, ASA 1L. PARRISH, a citizen of the United States,residing in the cityand county of Elkhart, in theState of Indiana, haveinvented certain new and useful Improvements in Paper-Bag Machines,

' of which the following is a specification.

My invention relates to machinery for manufacturing satchel-bottom bags'from bellows tucked tubing.

The objects of my improvements are to provide a bed or base that will berigid and convenient, upon which the bag machine and attendantmechanisms may be assembled; to provide mechanism for cutting, creasingand opening the bellows sided tubing in such manner as to facilitate thespreading of the end of the bellows tubing into the diamond form; and,for'the purpose of spreading out i the end of the tubing into thediamond form,

to provide mechanismthat will be compara tively simple, easily adjusted,and readily understood.

The improvements will be best understood by referring to the drawingsforming a part of this specification, in which:- I Figure 1 is a sideview of the bag machine in which unnecessary details are not shown; Fig.2, a top view of the base of the machine, the mechanisms which itsupports being removed; Fig; 3, a side view 01. a tab cutting device;Fig. 4, another view of the mechanism shown in Fig. 3, looking in the.direction of arrow at Fig. 3; Figs. 5 and 6 are enlarged details of Fig.3; Fig. 7, a View of a creasing device taken on line '1. T. of Fig. 14,all gearing being omitted; Fig. 8, a creasing plate and tuck opener;Fig. 9, a-detail of Fig. 8, showing a section taken on line n n of Fig.8; Figs. 10 to 12 show operations being performed; Fig. 13, a fragmentof tubing showing the efi'ect of the performed operations; Fig. 14, aside view of the mechanism shown in Fig. 7, also parts of the diamondfold forming, and main cutting mech-- anisms, the near side frame beingomitted for clearness; Fig. 15, a detail of the mechanism shown in Fig.16; ,Fig. 16, an enlarged view of the diamond fold forming mechanismstaken on line V. V, of-Fig. 14:; Figs. 17 to 22, are details of thebottomforming and side gripping devices, and show s'ome of theiroperations; Figs. 23 and 24, .show the diamond of the bag bottom in anadvanced position, the side gripping and cutting de'-. vices beingomitted; Figs. E5 and 26, are details of the main cutting device; Figs.27, .28 and 29, are further explanatory details of the side grippingdevices: Fig. 30, a detall of a final pasting and cutting device;

Figs. 31 to 34 show operations performed upon the paper by this machine.

Similar letters and figures refer to similar parts throughout theseveral views.

All parts of this machine are secured to other parts where necessary, bybolts, screws and means common in shop practice, and are not shown inthese drawings where not necessary.

R ferring to Fig. 1, A indicates a base or bed upon which the parts ofthebag ma chine are assembled and secured where necessary in any usualmanner; the based. is constructed with a flat top, having sides and endsat'substantially right angles with the topiace, making a basethatis'hollow underneath, and giving .it somewhat the shape of a large hoodor cover; in the hollow space in the under side of the base-are locatedstiffening ribs a, in anyconvenient position; a indicates an opening inthe base which has sides and ends a extending downward from the topabout the same dis tance as the outer sides. The slightly raised faces-aon the top of the base and its sides, are finishing faces upon whichdifi'erent parts of the bag machine are secured; a are legs whichsupport the body of'the base, clear of the door. This base, consistingof the parts substantially as indicated, is cast integral, making a veryrigid .and substantial' base which is not liable to spring or twist, andwill hold the difi'erent mecha- "nisms supported by it in correctalinement.

A depression, a; is formed in one side of the base, (best seen in Fig.2,) by locating a part of the side wall nearer to the center line I, ll,of the base. It is also obvious that the side framessuch as. are foundin most machines, over and around which the operator must lean whileworking, are not found in this section of this machine, their absenceand the depression 0' allowing the operator to stand in a nearer and;inore convenient position to the machine while performing necessaryoperationsin connection with this section of it. a indicates a devicefor pressing the foldedand pasted bags; the device may be of anyconvenient form, and mounted upon the base A. The carrier belt and itsrolls awn-for removing the folded bags from the machine, are supportedwithin the opening (1 end below the top of the base, which allows .thebag machine. mechanisms to be located conveniently lower than aveult'ithe power with which to operate-the machine and its attendantmechanisms; The former post 5, F 1g 3, 1s secures the base A, and hassecured upper end a part of e tucketl tube formic" device 5,

ov wnqdl I \JJLJk/l, I

the thifii plate h of somewhat to the 7 having the us al which the papbent emit of the hei s ets 12, and having an. 0 through it, in which 10is located, the roll being su to r, tate 1n bearings 11 of oz'acketswhich are roll secured to post 3'2 and 6,) has "turned in its grooves13, 13, anclthe groove, 14lcu in the face of the roll at right angles W1and having rcunr" ends Where it joins the grooves 13, 1?, 1. c are cutclee toll to s fe sirne. e.

ll cut away hetwn coves a socket. socket as to match the combined. she ethe grooves l3, an'cl 1s: The block iii is se cured to shaft 20, whichrevolves in hearings 21 an 22, which are secured by their flanges 21 and22, to upright bracket 23, the hubs of bearings 21 and 22 extending intoslotted openin s 23Fand 23, the slotted openings being or the purpose ofpermitting adjustment of the diflerent mechanisms toward or from eachother as may be desired, and also permitting the, useof gears andcutting devices of difierentj diameters, with the same bracket.,..

The bracket 23 is secured to the base and has securedto it hearing as,in which is supported one end of shaft 25, which ch, tains its motionfrom shaft 1, through a pair of miter gearsQfi and 2%; gear 26 issecured to shaft 25', and with 'miter gear 27 secured on shaft 2',-Which revolves in the same direction as the paper travels; gear 28 issecured to shaft 20, and meshes into gear 2 9, secured to-pin 30,

revolving in bearing'Bl, which is secured to and bearing 35 bein securedto former post b gear '36 is secure to shaft 33, and meshes with gear 34which issecured toroll 10 in any convenient manner. The circumference ofi=3 1s equal in length to the len th the g thbe desired, and bioch.lll'lllzld to the same ra-fiius as roll i when motion a'pplied'to themthrough the 5 embed, they will revolve in ethenand t F no r and betweeni i 2 3. .0, will have the mail g; cu Y teeth which purposes l2 es siciefz'ai support the heanngsd l" nal cl shaft 38, has-i cre'eser hubs E17,scpcr hilfi'ii, 2;; i 15 39, 39. The c es like, have e t. 6 each '5 and1 in which jo-un tv-Jo heei'ihgs the machin are eels secs i: sexes 5, 3,by screws 58,

stings H, 41]., have, them, sleeve extension re soured coll structeolsubstantial I (.Lc exp etc-21c of them ii he deemed sufiicient.Collar-e5, has forme integral with it, an extension so, which has afurther right angle extension 46* its outer end extending towartl thecenter of tie b2: machine; the side face 416 is cut away near its outerend, forming faces 26, 46?, and. secui'ecl to face so, is an angle piece4?, thereby creating right angle slot or slirlewvay, in

irl

which is supported, to sl e freely, as enguhe angular sheoetl iv. a), t

.l 1 I W, V 1. or steep: con r j llgnb pointed, and having creasinggrooves 51*- Loosely supported in side frames 3, 3, is

shaft 52, upon wiiich are secured levers 53'; lever 53 has secured to ita pin 53, upen which is loosely supported cam roll 53 heering againstthe face of cam 56, which is securecl to shaft 38. The spring 57 sup-'aorted on shaft- 52 and havin meet its ends 57 secured 'to side frame3, exerts a pressure at Its other end 57", upon lever 53,

in a' direction which compels roll 53 to bear --against cam 56 at alltimes.

53 and 53, have U shaped ends 58, 58, which the rolls 51 are located. Ashort slot 59, is formed in the side wall of angle tomeet andtravel-jwith the blades 61 so 47, which provides clearance for the roll51? when it is at its extreme forward position'. The tubing P whenpassing shafts 38 and 42, striiddlesitsside. tucks over the extensions51, of'the angles 49, or, for a better 4 understandinglf'will say,the'proper place 15- of the machine, is within the tucks of the for theextensions 51, durlng the operation tubing Pf 'Thekca'm 56 is soshapedasto cause the 'free ends of-levers 53 and 53' to 'oscillate backand forth, and they through contact with rolls 51, cause the angles149to slide back and-forth in the slideways,

, and as thecreaser blades 61 come in contact with the tubing P, theangles 49 are caused that the creasing-grooves 51 will be" in line withthe blades 61, and as the tubing 'P travels with the, creasing devicesduring their combined operation, it will be creased substantially asshown in Fig. 13, that is, one face of the tubing, and one-half of thetucks will be creased in one direction, and the opposite face of thetubing and its half of the tucks, will be creased in the oppositedirection. As shown in Fig 7, one side of the tubing and tucks will becreased up, and

the opposite side of the tubing and tucks will be creased down, and allof the creases will extend from the outside edges of the tubing towardthe center, a distance approximately the depth of the tucks. It will beseen by the foregoing explanation that one function performed by angles49, and their extensions 51, is that of angular creasing plates, and anexplanation of their operation is best shown and illustrated in Figs. 10to 12, in which the tuck of the tubing is cut away for a clearer view.After the creasing blades'61 have revolved out of con tact with .thetubing, the angles 49 cease to .travel in a direction with the paper,and are 'causedy. by cam .56, and; levers 53, 53', to

slide'in a reverse direct-ion, fto the position shown in Fig. 10,meeting and traveling in time with the creaser-blades as ,set forth. Theextensions '51, also perform. the very important bperation ofseparating,=or open- ;situated a distance apart andcarrying a '6"'cu-tting mechanism, Figs.r25'and Roll ing the tucksof the tubing, sothat the side gripping devices ofthe bottom forming 'portion of thismachine may enter-the tucks Supported in frames 3, are bearings and 66,in which are journaled shafts 63 and 64, upon which are secured rolls 67and 68,

Both levers 67 has a clearance space 69,-"formedin one side of it,andsecured to one' wall of the clearance space is a. cutting blade 70, aportion of which, 70 is -cut away leaving a clear space in its center.'A backing strip 7 2 is carried by"roll- 68,"which backs up the tubingP, while theknifeo crates upon it,

and hasaclearancespace 7 3," or'med through its length to clear thepoints,- of the knife teeth as they cut"through-the'tubingP'.' It

also has a portion 72 vcut awayso as to be clear of the paper-and avoidstraining it at this central point when the sides of the tubing arebeing cut.by knife 70. A gripping bar- 74 is carried by roll 67, havingpins 75 formed upon it, which are loosely inserted into holes 76 in 101167, pins 78 being se ing; into 'oles 80 in roll 67, thereby retainsing gripping bar 74 ,to roll 67 during its rotation, the holes 80 beinglarger than pins 78 permit the bar 74: to move to and from the roll 67.which enables the bar 74 tofgrip different thicknesses of tubing betweenitsface and the backing strip 72, the bar 74 being held against thetubing P by springs 81, inserted in holes. 82, in rolls 67, therebyholding the tubing tightly, so that the teeth of knife 70 will cutthrough it readily, and.

not push thetubinginto the cl arance space 73 of backing strip 72. Byreferring to Fig. 32, itwill be 'seen that the tucked tub-- ing P, iscut on the line p,which is back of the cross line 7) of the thumbplace7), and

if the tab p lay down in theopening from which it is cut, the-knife 70would cut into and mutilate it, and to prevent such mutilation is one ofthe objects which I accomplish by creasing the tab 72 and thus cause itto stand away at an angle to the face of the tubing 13', and the knife70,'as it is rotated,

will pass the creased or bent back tab 77 it is also supplied withspring holding means 83. The collar has bearing 'faces 86 on each curedin ins 75, the ends of pins 78. projectside of it, Fig. 20, againstwhich. shoulder screws 87 are secured, and supported upon the screws 87,is a side gripper 88, of special design.

The side ipper 88 is made of metal, preferablyo steel, and in one piece,Fig. 21, and while I may be obliged to designate the different featuresof this gripper by dif-' ferent names, which I do for the purpose ofexplanation only, I consider itone. piece of mechanism, and I shallrefer to it as a side gripp er, or,- lgripperjf88, as. may seem.

suitable.

The gripper 88 can heof any convenient shape, bein shown in these'drawi-ngs somewhat flat shaped, having on, its free end a bearing'brcontact face 89,.and a 'pping extension 90 located near one end 0contact face 89. .The inner end of-the sidegripper is formed so as toleave a leg extension- 91,

at each side, the le s being straddled over collar 83', and the si e'pper being loosely supported upon shoul er screws 87, which areinserted through holes '92,'in legs 91-, and secured to c0llar-83;.Oneend of spring 93, is secured to the side gripper through holes.S,and the other end is secured to any convenient means, as pin 83*. Thecollar 83, and side gripper 88, are secured in position upon shaft64,with roll 68, (Fig 27),-

or e u'ivalent means, the side-gripper is he d securely'in aninclined.position toextension 90 resting against the face .of roll. 68, and whiletheside gripper, is heldin this" inclined position, the contact face 89is turned to a radius that is equal to the distance from the center ofshaft 64, to a cen ter line L, between rolls 67 and 68,-and-after theturning of face 89 has been completed, the holding means may bedispensed with, to permit the side gripperto swing freely uponsupporting screws .87.' By refe to Fig. 19, it will be seen that if butone side gripper was leftin place u onits shaft, and the other one-wasremove the oneremaining in position would rotate with-its shaftindefinitely without any movementtoward the accompanying roll or thetubing, on account of the total absence of cams, rolls or'othermechanisms, such as are generally used in the operation ofside grippersin most bag machines. To obtain thedesired movement, l-have designedthese side grippers to operate in pairs, and abetter understanding oftheir operation will be had from the following explanation Secured toshaft 63, Fig. 28, is a collar 83, and a side gripper 88, which arecon-- structed the same as the ones on shaft 64, and previouslydescribed; when the free endsof grippers 88 are swung backward fromrolls "67 and 68, the contact faces 89.

extend .bey'ond'the center line L, in which case, if they are rotated,they will come in contact as they approach each other in coming to theposition where they grip the tucked tubing, and, after further explana'tion itwill be obvious that I intend them to come in contact. Toprevent the side rip;

pers from coming together harshly, re-

lie've the forward or contacti ends 96 of contact faces 89, so that theen s96 will be on about the radiusof;the center-line L,

when the sidegrippers are in their swung backward position. The brokenline 1' in Fig. 20, show thegreater radius occupied by faces 89; whengrlppers 88 are in the back ward positionshown in Fig. 28, the radius ofthe contacting ends is gradually increased from the ends 96, until thefull radius of the faces 89 is met, at about the point 97; the contactinends are also given a somewhat rounde shape as shown at 98, 98, Fig. 29,and if desired, the whole length of the contact faces 89 may be giventhe same, or a somewhat similar shape; the contact faces89 beingrelieved at. the ends 96 will permit the grippers 88 to come togethergently as they rotate.

When the side grippers are in their backward position, Fig-28, thecontacting'ends 96.a1'e.-on a line' with each other that is a 7 distanceinside ofthe center line through su1ip0rtmgscrews87, as indicated bybroken :9 am): It is obvious'that the springs the ends-of thesidegrippers andsignal-te tes; seenin-Eigi'li). As thesi de gnpperseontinueafter contacting at ends 96, theyw-ill push increasingly-againsteach'other as theyrolla "-st the increasing radiuses of. the contactingfaces from ends '96 to positions '97; andas the points'of contact'at 96are insidelof the supporting screws ,the free ends of the side grippers,asthey'push increasingly, against each other, w ll alsoz-lpush or swingeach other inward. toward their accompanying rolls, thereund-v ed faces98" permittln them to roll against each; otheneasily, an the grip ingextensions 9.0 will be projectedinto t -e tucks of the tubing P, andgrip the .tubin'g'to the rolls 67 and 68, at points where the creases PP have previously beenmade, and where the corners of the ba bottom aretohe fer med, the springs 93 engthening out wa'ldly.

The side grippers continuing to rotate as I the grippers 88 swing eachother inand bear against eachothersfaces 89, will continue to grip thetubingto'the rolls 67 and 68, forming the corners'of the bag bottom anddrawing the creases P P?',- of the tucks into a strai ht line, reachingthe po siti'o'n-shownin Figs. 17 and 18, when they will begin togradually run. out of contact with each other at-a point 99, from' whichpoint to their ends the faces '89' are re- ,ieved in substantiallythe'same manner as at their leading ends 96-, and as they run out.

of contact the springs 93 pull the grippers away from the partly formedbag bottom,

and back against the cushions 85, Fig. 1 9.

The contact-faces 89 could be terminated at the point 99, which wouldpermit the grippers who pulled back against the cushone, the sidegrippers will .not

ions very quickly and harshly, which would.

and rotating therewith. When a change of paper is made during theoperation of the machine, .from aheavy sheet to" a lighter ip the paperto the .rolls firmly, which w1ll cause the-making of bad shaped bags,and to -over come:this difliculty I have provided: the fol- .lowingexplained adjustment, which. is to compensate for the diiferentthicknesses of paper operated on, and is consequently very slight.Bearings 65,. 65, of shaft 63, and supported in frames3, 3, 15 .and16,are arranged for an up and down movement produced by turning the screws101 thread,-

"ed}ins'traps 3 3', and are held; a inst the screws 101 by sprlngs 102.It w' 1' be seen.

- that by turning thejscrews- 101 downward the side grippers will bepushed together and their free ends will swing fartherin toward'their'--.accompanying rolls, and'the. extensions 90 will grip the,paper more se-= mcurely." The reverse operation from the .madefrom-a "InFig. 17, a side grip er has a' portion of foregoing bein the case when achange is ht 'sheettoa heavy one.

it cut awayshowing' a ladelOO secured-to p on which thebag bottom isfolded when -roll .67, during the rotationof which, and the time offormingtheco'rners of the. bag bottom, the upper face of the tubing P isbent over the blade, definin the .crossline flattened into thediamondform. Secured upon straps 3' 3', and

Jporting cross-bar 105', near the center of which is secured by screws106, a plate 107, having its secured end formed at an angle with themain portion, the free end of which is curved and may terminate inastraight end 108 or the curved shape may extend to the extreme end.Formed upon the face of the plate is a stifieningrib 109 supportingdiamond fold flattener 110, which withthe '1'ib 109 and plate--10? arecast integral, Figs. 14 and 16. The plate'107 has two clearancespaceslll, formcdzin its edges"'to .clcar the inner creases of the sidetucks of the tubing P as it moves forward. The tab standing at an anglewith the tubing, will come in contact with theback face' of plate 107and slide upward as the side 1ppers open the end of the tubing to the'sapeshown in Figs. 1? and 18, which issubsta'n-l the frames" 107",be1nggradually inclined backward,- fold- 11.9 3 3, by screws 103 areextensions 104suptially what is known as the box form the upstandingposit-ion of the tab at this time facilitating its movement upward alongthe I back face of'said p1ate'107 and preventing its becoming)mutilatedor turned in a wrong direction. uring the operation of opening out atucked tube and spreading a diamond form on the end of it, the ldifiiculty encountered in folding'the sides p, p, in an inward directionis well known, and compli:

'cated and expensive operative. mechanism is necessary in most bagmachines to overcome the difiiculty. I. overcome the difiiculty largelyby forming the creases p, p, in the tublng P, reference being had to'Figs. 17

and 18, in which but one-half of'the bottom formmg mechanisms are shown,they "being deemedl suflicient for explanation.-----;When' the sidetucksof the tubing are spread apart by the grippers 88, the creases p'will'be drawn lnto a stra htline wit1 each' other,

formingsubstantia 1y one crease on the line Where'theside edge of thebag bottom is to be formed, giving them the appearanceof havingbeencreased from the inside of the tubing --.t'oward the outside, and aspaper gpperallyfolds in a direction op osite to the ectionin which it iscrease the sides of'thelbag bottom 6 will, be inclined in wardly andold' into the desired diamond form very readily and without 'the'use of.much mechanism. Astheside grippers release their, holdupon the corners.p, p, the box form of the ba botvtomis drawn forward and downward'y-the bag body connection p with the precedi and rolls 112, over table{1.- secure to frames ,3,- 3, the"plate 107 "retardin the upper orrear'portion at-tab p whic elongates the bag bottom, Fig. 19'andinducesthe sides 1) to-.fold inward an over the face of plate 107, andas the bag bottom still further- .Pro resses, Figs. '23 and 24, the rearend of liag bottom is drawn along against plate ed on the .crossline andagainst the body of the tubing In t 1e meantime the sides p of the bagbottomcontact with and pass ander the ends of fiattener 110, by whichthe sides are flattened into the diamond form, the lamond being pressedand pasted in the bag'and completing it by the usua 1 pressing-1 By theforegoing explanation it will be seen that the mechanisms used inthediamqud fold forming section of this machine are, fewin'nu'mber and verys mple, with-very slight and readily understood a justments, 'themultiplicity of mechanismsfound necessaryin this'section of otherinachines of this class being conspicuously-absent from this one as forinstance,the ones Bartholomew.

shown in Patents ho. 578,550 granted to (1.. E. Dulen; and No. 7 36,678granted to P.. L.

' Any convenient means maybe employed -to supply motion to this bag machne, as

from'motor a to gear g secured to shaft 1,

'1 for b a-belt on pulley 2, secured to shaft 1,

. in p ace of gear Shaft 1 being the main 10 drivingshaft has secured toit miter gear" 25 meshing wit-h miter gear 25 securedio shaft 25., towhich is secured miter ear 26- giving motion to miter "gear 27 ens aft42, and gear g conveys motion through.

loose pinion g? to gear g on'shaft"63. flGear 51* also gives-motionthrough loose inion .g .to gear g secured toshaft' D an gear g.

moves gear 9 on shaft D Gear 9 also gives motion to gear 9' secured to11mm, and gearg through loosefgear gfito gear 9- on shaft 115;:ge'ar gjmoves geaqg 'secured to shaft 116, and itl'to gear P 'P,'which' rotatespaste roll C; Gear 9'? also. gives motion through loose pinion g?tozgear g secured to shaft 117, gear 9 -moves loose gear gtfi and itmovesgean 9 secured. to

which transmits'motion' through carrier belt "119 to presser a and itsattendant mecha nisms. -Gear 9 securedto shaft -120'i'e--- 'ceivesmotionfrom loose piniong,= and gives motion to gears 9 g and ya-secured toshafts 121, 122 and 123. All loose gears, and pinions are supported uponsuitable pins which are secured in proper positions for the gears andpinions to operate. It. is obvious that when motion is applied to shaft1, all gears and their attendant mechanisms in this machine will'rotateiin the proper di rection and in time with each other .as-desired. I

Fig. 31 indicates paper being formed into tucked tubing, with tabs p out'itand standing at an angle with the paper. Fig. 32 is acontinuationofFig.31 showingthe creases 32 ,11, made in the tubing at a posi tionwhere the corners of the bag bottom are to. be formed, and at anadvanced position showing the tubing cut through alliof its pliesleaving a narrowuncutconnection. P

and the tab p unmutil'ate'd, and'at' a further advanced position showingthe end of the tubing thrown into substantially the box form, the topface-of the-tubing having been bent in the meantime over the edge of a"blade on the line 1?. Fig. 33 showsv the bag*- bottom flattened intothe. diamond form against the tubing, having paste P? "applied in a.usual manner, the connection P- sev-i cred, andat astill-furtheradvanced position.

The operation, of the machine is as fol- 1 been made, clos ngthe'bagbottom ft I which-it is finished b'y a t A lows :-The' paper is drawninto the machine by thefiisualldrawrolls uponshafts D and D becomingtuckedtubing as itis drawn over the former-b. The tabs' 72? are Ycreaser blade "l91just'rback'of the creasing edge; 15 upon 'r'ollfl0'-," ca using -.the' tabs to stfandf'at angle with tli' 'pa'per asitis'd'rawn between roll 10 and closers-and; into the machine; As the;shafts "3 8 and 42 -rotate,

the'cam- 56 oscillates-'the'levers' 53'and 53,

causing the creasing p1ates- -within the tucks ofthe meet-and revel withthe ng 111a bottom areittrb'ef formed, the creasing blades 61; on'ningintheir rotationfand the cam f 61- alsthe'y' r0 ate; and crease'gthe tubingfas 1t travel'siwith them, -'a't points whereitheepl'nerfs-and'sideiedges of thebag 56-ausingjthllvrs taraiid 53"td-oscillate and move thegj creasing plates -backward+to .m'eet fthenextpncoming'bagposition.in the tubing. 1 Asfthetubih'g moves forward.the

knife 'I0"passes the tab "p which projects into the cIear'Spac-BQ thetubing .is gripped- :bythe bar f i against backing strip .72 while yum;knife IO- outs the tubing, leaving a narshaft 118, upon which vissecured mute, 'row-uncutconnection, inth'e bottom-side,

the creasing plates" w thin the tucks ofthe by knife; 70; hortly afterthe-'tu ing is out and the tuck's z-are' separated, the side gripperscome inv contact with'eachotheras set forth, and swing their extensionsinto the tucks-of-the tubing and grip jitfto rolls 67 and' 68, at-pointswheregthe corners of the bag bottom are to'be formed, and where thecreases 2 f, havebeen made, the grippers holding the tubing to the;rolls as, they rotate to the position shownin Figs. 17 and 18,

. which is'substa'ntially the-box form,. in-the meantime the tabf p.cont-acting with" plate 107 and s lidingi l pwal dflndithe top ,face ofthe? tubing being. bent over blade; 100;. At; this position" the sidegrippers begin torun out of contact,fr e'leas'ing the corners of thepartlyuforined bag bottom and being pulled back-b springs 93 againstcushions.85.4 As the si' e 'grippers release the c'orners p,- 77 the boxform of the bottomvis drawn forand rolls 112 over table 4,- and. as it is draw-n along the plate 107 retards the rear portion of tab 72elongating the bag bottom and causing the sides '77? to fold inward "andover the. -face of plate 107,- which inclines the rear end of. the .bagbottom backward, folding it on the crossline p 'andagainst; the body-of.the tubing,-the sides being flattened 'intothe'idiamond form by flatbeing also iseparators, will cause the tucksgto .open agent after thetubin "isIcut 1 Ward and downward by the connection 72 larly for use inconnection 'with 'heavy ing, final severing and folding devices of knowntype, and the details ofsu'chdevices" folds 7) and 7')" are made andpressed in a manner as set forth.

.tube cutting mechanism; and one" of? said rolls havlng a clearancespace formed la 88, arranged to enter, the tucks of ftl e tub? tener110, after which the bag bottom is pressed, pasted, severed at 29 andthe final The tubing, whn'cut through all of its plies and still beingconnected withthe preceding bag at 79- is considered as havinqan endupon it and is' referred to as sue "in this specification. ThedirectionimJvhiCh" the paper travels in this machine 15:; con; i

sidered the forward one. v V v- V I have shown the side grippers in thismachine as o crating in connection with a pair of rolls carrying .othermechanisms, which is not absolutely necessary, as the side grippers maybe operated with a pair of plain rolls and the other mechanisms.operated in any other desiredposit-ion or man ner, in fact the sidegrippers may be used in other machines and cooperate with mechanismsthat are entirely'difi'erentin their construction and operation from theones herein shown, and still perform the operations. for which I havedesigned them. I -I have designed the creasing mechanisms.- for formingthe creases P P more-particu-r weight papersthat are' stifl anddiflicult to fold. and they maybe dispensed with when the machine ,ishandling paper of lighter weight. And I wish it to be understood thatvariations from the'meehanisms herein specified can be made without-departing fr'omjthe spirit of my invention,

'lhe tucked tube. forming, pasting, I'PI'GSS,

this machine are, or may be, of any well are showno'nly so far asi'sdeemed necessary fora complete understanding --in'con nection with thedevices'which more particularly pertain to this invention;

What I do believe. to be new,-and desire to "secure by LettersPatentis 1. In 'a' paper bag machine, the combis nation of rolls betweenwhich tucked tubing'pass'es, rotating sidegrippers as '88, 88, 88. 88,arranged toenterthe tucks-of the tubing and having bearing'facesopposing eachother andextensions adapted togrip the papen to the rolls,-said rolls carryinga 2.111 a paper bag machine, thecombination of rolls;between which tucked-tubing passes, rotating'side grippers its-88,88,88,

in}; and having bearing-facesopposingeach other a1'1d' extensionsadapted to grip the paperto the rolls,.said rolls carrying ajtubegripping and cutting mechanism, and one of said r'ollshavingaclearancespaceformed i itsltucksonly ,ofthe'tubing are-bent defin'--'ing the crossline P",

4.3111 a'paper. ba machine/the combination of a pair of si e gripperssuitably sup- ..jpflorted for rotation, with means against which to griptucked tubing, bearing faces upon the outer or free ends of saidgrippers adapted "to bear upon one-another, whereby they act to ripsaid'tubinga'gainst said means, and the lnner ends of said grippersbeing adapted for their support.

'5., In.a paper bag machine,the'combination of a pai'rof side gripperssuitably supported for "rotation, with means against which to. griptucked tubing, means for grippingthe tubing, bearing faces npon theouter or free ends of. said grippers adaptedto bear upon one anotherwhereby they act to project-their gripping means within the tucks of thetubing and ip itagainst said means; and. the inner en s of said grippersbeing adapted for their support.

6.;:I'n1ai paper ba machine, the eon1bination of a 'pairaof sidegripper-S'suitably supported for by rotation, Iwith means against which.to grip. tucked tubing, gripping extensions located 1 nearone 'end of'bearing grippers, said bearing faces 'Bieiiig adapted to come incontactwhereby-they act to grip the tubing to said means,'saidbearing facesbeingformedvtc a suitable radius and having-their ends. relieved, andthe inner ends of the grippers being adapted for their support. f

. 7. In apaper bag machine, the combination of a; pair of suitablysupported rotating side grippers,-Itvith means'against which to griptucked tubing, bearing faces andl-gripping means located upontheiroutenor free" ends,-their inne'r ends being adaptedfor.thehpsuppdrt, the ,bearing *face'sbeing formed .to-a suitable radiusandgiven a rounded shape, and the ends of-the bearing faces beingrelieved, and means to rotate the grippers.-

' 8. In a paperbaginachine, the. combination of a pair of sidegrippers'suitably sup ported 'for rotation, with means against which togrip tucked tubing, gripping extensions 90, hearing faces 89 withrelieved and rounded ends, leg extensions 91, holes 92,-and springsecuring means. all substantially as specified."

- 9. In a paper bag machine, a pair of par- -'faces located-upon: theouterlends. of the allel shafts, collars fast upon said Shafts, 1-0,-

tating sidegrippersloosely attached to said In a paper.bagiiiiacliine,the combina collars and having bearingfaces adaptedto.

'be.1 brbught into contact, cushions secured to the'collars andfmeansarranged to pull the grippers against the cushions. I

.10.In.'a paper bag machine, the combination of-apair of rotating sidegrippers, suitable supports theljefonand means for rotatinto the-tucksof the tucked tubing. f

11. Means'in a aper bag machin manipulation of thel grippe'is, saidgrippers having opposed .--bearing faceson their outer ends ar- 'rangedto come inconta'et with and bear against each other,'. whereby thegrippers are caused to project their gripp ng ends for the fi'erentthicknesses of paperby .s'idegrippers, comprising, a pair or shafts,avpairof rolls secured to the shafts, side grippers arranged in pairs ateach end of the rolls, means to support androtate the shafts, rolls andgrippers, said grippers bearing against each other as they rotate,

thereby projecting their gripping means near to said rollsto grip thepaper. to the rolls and means for varying the distance between thegrippers whereby they'may operate on diiierent thicknesses offpaperg 12.In a paper bag machine, mechanism for opening out the box form on theend of tucked tubing consisting'of a pair oi rolls between which thetubing passes in'o0mb'-' nation with four rotating side grippersarranged to operate 1n pairs and havmg.op-; posing hearing faces adaptedto' be brought into contact whereby the grippersgrip the tubing to thefaces of the rolls and open out its end into the box form of the bagbottom to be formed, and a blade, carried by one of the rolls, upon theedge of which one face of the tubing is bentwhile thebox form is beingopened.

13;. In a paper bag machine, the combination of apair of rolls betweenwhich the tubing asses, four side grippers as 88,88, 88, 88, arrangedand attached to the shafts in pairs at each end of the rolls androtating therewith, the grippers of 'each pair being adapted tocontact'withneach other and.

thereby themselves to PI'OJGCi) their gripping ends between the rollsand the tucks of the tubing, and to grip the tubing to .the face of therolls and spread open the end ofthe tubing into substantially the boxform of the bag bottom; the grippers also releasing their grip upon thetubing and means to retract the grippers from the tubing as they releaseit.

14. In a paper bag-machine, the combination of a pair of rolls betweenwhich the tubing passes, side grippers as 88, 88, 88, 88, arranged tooperate in pairs and attached to the shafts at each end of the rolls androtating therewith, the grippers of each pair being adapted to contactwith each other and thereby themselves to project their gripping endsbetween the rolls and the tucks of the tubing, and to grip the tubingtothe face of the rolls and spread open the end of the tub-- porte .ablysupported and curved near its free end,

a stifl'eningrib and afiattenersupported by said rib, and made integralwith said rib and plate, and means to draw a partly formed bag bottom aainst and around said plate and pastsaid Eattener by which it is foldedinto the'diamond form. Y

16. In a pa er bag machine, a curved plate and sti ening rib, and aflattening means supported'by said rib all made integral, said platebeing adapted toclear the inner creases of the 'sidevtucksof thet'ubinand said plate being rigidly sup-. the line of travel of the tubingsubstantially'as' specified.

- 17.0In a paper bag machine, mechanism for spreadingjthesdiamond foldon the end oftucked tubing comprisin a pair of noncontact-ing rollsbetween w ich the tubing passesin' combination with four side ippersarranged inpairs at each end 0 the rolls and rotating therewith, bearingfaces upo'njthe outer ends of said grippers, the grippers of each airbeing adapted and so arra11'ged.that .wh e rotating, they cooperate witheach other by the contact of their bearing faces and act to grips thetubing to the rolls and formthecorners and side edges of'the bag bottom,a blade carried by one of the rolls to form the cross-line P in one faceonly of the tubing, a curved plate and a flattening means rigidlysupported in the. line of. travel of the tubing and acting to fold thepartly formed bag bottom into the diamond fold and against 'the'body ofthe tube, and means todraw the bag blank away from the grippers andagainst the plate and fiat'tener. v

' 18. In a paper bagmachine, the combination of rolls as 67andGS-carrying a tubecnttingimechanism and between which the tubingpasses, one of said rolls carrying a blade by which the line P isdefined in one face only of the .tubing, four-rotating side gri perssupported in pairs at each end of sai rolls, cooperating bearing facesupon the grippers adapted to come in contact whereby thegrippers-operate to form the corners andside edges-of the bag bottom, a

"plateand a flattener made integral'and rigidly supported, and arrangedto fold party 4 formed bag bottoms into-diamond form, and

means to draw the bag blank away from the V grippers and; against theplate! and flattener.

and acting to fold thepartlyformed bag.

- the creasing plates,

armor 19. lln a paper bag machine, creasing plates adapted to pro ectwithin the tucks of the tubing and separate the tucks, a creasing groovein oneface of, the creasing plates, a creasing groove in the oppositeface of means to operate with the creasing plates to crease the faces ofthe tubing and its tucks, and means to support and operate the platesand the creasing means.

20. In a paper bag machine, creasing plates adapted to project withinthe tucks of the tubing, rotating creasing blades arranged to operatewith the creasing plates and crease one face of the tubing and onehalfof the tucks in one direction, and to crease the opposite face of thetubing and its half of the tucks in the opposite direction, andmechanism to support and to operate the plates and blades.

21. In a paper bag machine, the combination of means for creasing theopposite faces of the tubing and itstucks in opposite direc tions towardeach other, a pair of rolls between which the tubing passes, rotatingside grippers as 88, 88, 88, 88, arranged to swing their gripping endsbetween the rolls and into the tucks of the tubing, and grip the tubingto the faces of the rolls and form the corners and side edges of the bagbottom to be formed, where the faces of the tubing and tucks have beencreased.

22. in a paper bag machine, the combination of mechanism for creasingthe opposite faces of the tubing and its tucks in opposite directionstoward each other, a pair of rolls between which the tubing passes,rotating side grippers as 88, 88, 88, es, arranged to swing theirgripping ends between the rolls and into the tucks of the tubing, andgrip the tubing to the faces of the rolls and form the corners and sideedges of the bag bottom to be formed, where the faces of the tubing andtucks have been creased, and a plate and its fiatteuer arranged to foldthe partly formed bag bottom into the diamond form and against the bodyof the tub ing.

23. In a paper bag machine, the sleeve extensions 44, 44, collars 45,4:5, having extensions 4c, 46, and 46 46*, angles 47, a7, secured tofaces 46", 46", the slideways in which are supported the angularcreasing lates, rolls 51,*51, levers 53, 53, secured to shaft 52, camroll 53 bearing against cam 56 secured to shaft 38, the spring 57, thecreasing hubs 39, 89, 39, 39, and the creasing blades 61, all supportedand arranged to operate substantially as and for the purpose specified.

24:. In a paper bag machine, the combina tion of a suitable base, abracket secured to the base at one side of the machine center, saidbracket consisting of an upright portion having at its upper endan'overhanging 10 provided with extension toward and near to the centerof the machine, a tab cutting and creasing means supported at the end ofsaid extension, and mechanism supported by said bracket acting tooperate said cutting and creasing means, substantially as shown anddescribed.

25. In a paper bag machine, the combination of a suitable base, abracket secured to the base at one side of the machine center, saidbracket consisting of an upright portion having at its upper end anoverhanging extension toward and near to the center of the machine, aformer post secured to said base, a former plate supported by said post,roll 10 provided with grooves and block 16 between which the paperpasses, knife 18 adapted to pass its teeth through the paper and intosaid grooves, thereby cutting a complete tab at one operation, andmechanism supported by said bracket and said post to operate the tabcutting means, substantially as shown and described.

20. In a paper bag machine, a tab cutting and creasing mechanismconsisting of roll grooves, and block 16 between which the paper passesin combina tion with knife 18 adapted to pass its teeth through thepaper and into the grooves thereby cutting a complete tab at oneoperation, blade 19 and edge 15 to crease the tab and cause it to standat an anglewith the paper as it is drawn into the machine and means tosupport and operate the tab cuting and creasing mechanism substantiallyas shown and described.

27. In a paper bag machine, mechanism for cutting a tab in the paper andcausing the tab to stand at an angle with the paper in combination witha pair of rolls between which the tubing passes, one of said rollshaving a clearance space formed in one side of it into which the saidtab projects as it approaches the roll, thereby permitting the tubecutting mechanism to cut the tube without mutilating the tab, said tubecutting mechanism and rotating side grippers as SS, 88, 88, '88,arranged to operate with each other in pairs and with the said rolls andtubing, substantially as specified.

28. The combination in a paperbag machine with means for forming bellowsfolded tubing and for preparing the forward end of such tubing for theformation of a diamond fold, of mechanism for spreading the diamondfold, comprising suitable rolls side grippers arranged in pairs rotatingwith rolls and provided with gripping ends entering the tucks andgripping therh to the rolls, and also spreading the folds and formingthe side edges and corners of the bottom, said grippers being caused tothus act by their contact with each other, and

mechanism for flattening the bottom.

29. A paper bag machine having means,

against which to grip tucked tubing in combmation with suitablysupported and rotating side grippers adapted and so arranged that whilerotating and contacting with each other they themselves project theirgripping means between the tucks of the tubing and grip the tubing tosaid first mentioned means and form the corners and side edges of a bagbottom.

:60. A paper bag machine having a knife adapted to cut through all theplies of the tucked tubing and leave an uncut connection as 22 betweenthe bag lengths, a gripping means upon the rolls located forward of theknife and acting to put tension on the paper in combination withnon-contacting rolls between which the tubing passes and by which theknife and gripping means are carried.

31. In a paper bag machine, the combination with two non-contactingrolls 67 and (38 between which the tucked tubing passes selfactuatingside grippers 88 mounted to rotate with said rolls and having grippingends whereby they grip the tubing to the rolls, cutting means forcutting through all the plies of the tubing, except an uncut connectionbetween the bag lengths, and gripping means also mounted on the' rollslo cated forward of the cutting knife and acting to put tension on thepaper.

32. In a paper bag machine. the combination with two non-contactingrolls 67 and 68 between which the tucked tubing passes, self-actuatingside grippers 88 mounted to rotate with said rolls and having "r'ppiugends whereby they grip the tul to the rolls, cutting means for cuttingtut-cough all the plies of the tubing, except an uncut connectionbetween the bag lengths, a bending blade, as 100, also carried by one ofsaid rolls, and gripping means also mounted on the rolls located forwardof the cutting knife and acting to put tension on the paper.

In a paper bag machine, means against which to grip tucked tubing incombination with suitably supported and rotating side grippers adaptedand so arranged that While rotating and contacting with each other, theyproject their gripping means between the tucks of the tubing and gripthe tubing to the said first mentioned means, said projecting' andgripping action of the side grippers being caused by no other means thanthemselves.

34. In a paper bag machine, means for preparing the end of the tuckedtubing for the formation of a diamond fold, comprising means for feedingthe tubing, means for forming a tab in the paper, means for creasingsaid tab so that it will stand at an angle to the tubing and enable itto clear the cutting means by which the tubing is severed, means forsevering the tubing, and means for spreading open the bottom.

ASA L. PARRISH.

\Vitnesses BESSIE B. lu'onn'raon M. U. DEMARES'I.

